ABAP Select data from SAP table KONR into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP KONR table and store it within an internal table, including using the newer @DATA inline declaration methods. It also shows you various ways to process this data using ABAP work area, inline declaration or field symbols including executing all the relevant CONVERSION_EXIT routines specific to KONR. See here for more generic Select statement tips.

Sometimes data within SAP is stored within the database table in a different format to what it is displayed to the user. These input/output conversation FM routines are what translates the data between the two formats.

There is also a full declaration of the KONR table where each field has a char/string type for you to simply copy and paste. This allows you to use processing that is only available to these field types such as the CONCATENATE statement.

DATA: IT_KONR TYPE STANDARD TABLE OF KONR,
      WA_KONR TYPE KONR,
      GD_STR TYPE STRING.

DATA: lo_typedescr type REF TO cl_abap_typedescr.
DATA: lv_fieldname type fieldname.

FIELD-SYMBOLS: <FIELD> TYPE any.
FIELD-SYMBOLS: <KONR> TYPE KONR.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_KONR.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM KONR
  INTO TABLE IT_KONR.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM KONR
*  INTO TABLE @DATA(IT_KONR2).
*--Further methods of using ABAP code to  select data from SAP database tables

*You can also declare the header/work area using the in-line DATA declaration method
READ TABLE IT_KONR INDEX 1 INTO DATA(WA_KONR2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_KONR ASSIGNING <KONR>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<KONR>-MANDT = 1.
<KONR>-KOKRS = 1.
<KONR>-VERSN = 1.
<KONR>-GJAHR = 1.
<KONR>-RESRC = 1.

ENDLOOP.

LOOP AT IT_KONR INTO WA_KONR.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_KONR-PGUAB, sy-vline,
  WA_KONR-KSCHL, sy-vline,
  WA_KONR-VARFLD001, sy-vline,
  WA_KONR-VARFLD002, sy-vline,
  WA_KONR-VARFLD003, sy-vline,
  WA_KONR-VARFLD004, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_KONR you want to display...

  WRITE:/ sy-uline.
* Aternatively use generic code to Write field values (and NAME) to screen report
  DO.
    ASSIGN COMPONENT sy-index OF STRUCTURE wa_KONR TO <field>.
    IF sy-subrc <> 0. EXIT. ENDIF.
    WRITE:/ 'Field Value', <field>, sy-vline.
    gd_str = <field> .
    lo_typedescr ?= CL_ABAP_DATADESCR=>DESCRIBE_BY_DATA( <field> ).
    lv_fieldname = lo_typedescr->GET_RELATIVE_NAME( ).
    WRITE:/ 'Field Name', lv_fieldname.
  ENDDO.

  
*Redo loop but convert all fields from internal to out value  
LOOP AT IT_KONR INTO WA_KONR.


*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Convert all fields to display/output versions using conversion routines
  PERFORM convert_all_field_values CHANGING wa_EKKO.
	 
ENDLOOP.

  
*&---------------------------------------------------------------------*
*& Form convert_all_field_values
*&---------------------------------------------------------------------*
FORM convert_all_field_values CHANGING p_EKKO LIKE wa_EKKO.
DATA: ld_input(1000) TYPE c, ld_output(1000) TYPE C.

*Conversion exit ALPHA, internal->external for field VERSN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_KONR-VERSN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KONR-VERSN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field GJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_KONR-GJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KONR-GJAHR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field RESRC
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_KONR-RESRC
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KONR-RESRC.
WRITE:/ 'New Value:', ld_input.

*Conversion exit KOTAB, internal->external for field KOTABNR
CALL FUNCTION 'CONVERSION_EXIT_KOTAB_OUTPUT'
  EXPORTING
    input =                      WA_KONR-KOTABNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KONR-KOTABNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field KMEIN
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_KONR-KMEIN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KONR-KMEIN.
WRITE:/ 'New Value:', ld_input.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_KONR_STR, 
MANDT TYPE STRING,
KOKRS TYPE STRING,
VERSN TYPE STRING,
GJAHR TYPE STRING,
RESRC TYPE STRING,
PGUAB TYPE STRING,
KSCHL TYPE STRING,
VARFLD001 TYPE STRING,
VARFLD002 TYPE STRING,
VARFLD003 TYPE STRING,
VARFLD004 TYPE STRING,
VARFLD005 TYPE STRING,
VARFLD006 TYPE STRING,
VARFLD007 TYPE STRING,
VARFLD008 TYPE STRING,
VARFLD009 TYPE STRING,
VARFLD010 TYPE STRING,
KNUMH TYPE STRING,
KAPPL TYPE STRING,
KVEWE TYPE STRING,
KRECH TYPE STRING,
KOZGF TYPE STRING,
KOLNR TYPE STRING,
KOTABNR TYPE STRING,
KOTAB TYPE STRING,
KBETR TYPE STRING,
KONWA TYPE STRING,
KPEIN TYPE STRING,
KMEIN TYPE STRING,
KTEXT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_KONR_STR type T_EKKO_STR.

DATA: ld_text TYPE string.

LOOP AT IT_EKKO INTO WA_EKKO.
  MOVE-CORRESPONDING wa_EKKO TO WA_EKKO_STR.
  CONCATENATE: sy-vline
WA_KONR_STR-MANDT sy-vline 
WA_KONR_STR-KOKRS sy-vline 
WA_KONR_STR-VERSN sy-vline 
WA_KONR_STR-GJAHR sy-vline 
WA_KONR_STR-RESRC sy-vline 
WA_KONR_STR-PGUAB sy-vline 
WA_KONR_STR-KSCHL sy-vline 
WA_KONR_STR-VARFLD001 sy-vline 
WA_KONR_STR-VARFLD002 sy-vline 
WA_KONR_STR-VARFLD003 sy-vline 
WA_KONR_STR-VARFLD004 sy-vline 
WA_KONR_STR-VARFLD005 sy-vline 
WA_KONR_STR-VARFLD006 sy-vline 
WA_KONR_STR-VARFLD007 sy-vline 
WA_KONR_STR-VARFLD008 sy-vline 
WA_KONR_STR-VARFLD009 sy-vline 
WA_KONR_STR-VARFLD010 sy-vline 
WA_KONR_STR-KNUMH sy-vline 
WA_KONR_STR-KAPPL sy-vline 
WA_KONR_STR-KVEWE sy-vline 
WA_KONR_STR-KRECH sy-vline 
WA_KONR_STR-KOZGF sy-vline 
WA_KONR_STR-KOLNR sy-vline 
WA_KONR_STR-KOTABNR sy-vline 
WA_KONR_STR-KOTAB sy-vline 
WA_KONR_STR-KBETR sy-vline 
WA_KONR_STR-KONWA sy-vline 
WA_KONR_STR-KPEIN sy-vline 
WA_KONR_STR-KMEIN sy-vline 
WA_KONR_STR-KTEXT sy-vline      INTO ld_text SEPARATED BY SPACE.

*Add any further fields from structure WA_EKKO_STR you want to CONCATENATE...
ENDLOOP.
ENDFORM.